From the first day on Stranger Things to their final season together, here's a look at how their friendship has evolved.

They've been friends since they shot the show's debut season in 2015 - both on-screen and off.

In spite of little onscreen interaction between Eleven and Will Byers, the two have grown extremely close behind the scenes.

The Stranger Things set on its first day, December 2015

First red carpet together for Millie Bobby Brown and Noah Schnapp, July 2016

BAFTA Tea Party: Millie Bobby Brown and Noah Schnapp, January 2017

Afterparty of the Golden Globes 2017 with Millie Bobby Brown and Noah Schnapp

The Millie Bobby Brown and Noah Schnapp friendship test 2019

Noah Schnapp and Millie Bobby Brown talk about Stranger Things ending in 2022

Stranger Things season 4 premiere in May 2022: Millie Bobby Brown and Noah Schnapp

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